UCC28061 - 具有改善的抗噪性能的 Natural Interleaving(TM) 转换模式 PFC 控制器

UCC28061是TI德州仪器公司的一款功率因数校正产品，UCC28061是具有改善的抗噪性能的 Natural Interleaving(TM) 转换模式 PFC 控制器，本站介绍了UCC28061的封装应用图解、特点和优点、功能等，并给出了与UCC28061相关的TI元器件型号供参考。

UCC28061 - 具有改善的抗噪性能的 Natural Interleaving(TM) 转换模式 PFC 控制器 - 功率因数校正 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品描述

Optimized for consumer applications concerned with audible noise elimination, this solution extends the advantages of transition mode—high efficiency with low-cost components—to higher power ratings than previously possible. By utilizing a Natural Interleaving technique, both channels operate as masters (that is, there is no slave channel) synchronized to the same frequency. This approach delivers inherently strong matching, faster responses, and ensures that each channel operates in transition mode.

Complete system-level protections feature input brownout, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown. The additional FailSafe over-voltage protection (OVP) feature protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure.

产品特性

NATURAL INTERLEAVING FEATURES
- Easy Phase Management Facilitates Compliance to Light-Load Efficient Standards
- FailSafe OVP with Dual Paths Prevents Output Over-Voltage Conditions Caused by Voltage-Sensing Failures
- Sensorless Current Shaping Simplifies Board Layout and Improves Efficiency
- Inrush Safe Current Limiting:
  - Prevents MOSFET conduction during inrush
  - Eliminates reverse recovery events in output rectifiers
SYSTEM FEATURES
- Improved Audible Noise Performance
- Soft Start on Overvoltage
- Integrated Brownout
- Improved Efficiency and Design Flexibility over Traditional, Single-Phase Continuous Conduction Mode (CCM)
- Input Filter and Output Capacitor Current Cancellation:
  - Reduced current ripple for higher system reliability and smaller bulk capacitor
  - Reduced EMI filter size
- Enables Use of Low-Cost Diodes without Extensive Snubber Circuitry
- Improved Light-Load Efficiency
- Improved Transient Response
- Complete System-Level Protection
- 1-A Source/1.8-A Sink Gate Drivers
APPLICATIONS
- 100-W to 800-W Power Supplies
- Gaming
- D to A Set Top Boxes
- Adapters
- LCD, Plasma and DLP TVs
- Home Audio Systems

DLP is a trademark of Texas Instruments. Natural Interleaving is a trademark of Texas Instuments.

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